ECOMAG Model: an evaluation for use in South Africa
- Mokoena, M P, Kapangaziwiri, E, Kahinda, J M, Hughes, Denis A
- Authors: Mokoena, M P , Kapangaziwiri, E , Kahinda, J M , Hughes, Denis A
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438268 , vital:73447 , ISBN 978-1-4312-0408-3 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/TT%20555-13.pdf
- Description: The complexity of current approaches to water resource management poses many challenges. Water managers need to solve a range of interrelated water dilemmas, such as balancing water quantity and quality, flooding, drought, maintaining biodi-versity and ecological functions and the supply of water services to people. It is a sad fact in southern Africa that water availability is highly variable both spatially and temporally with low runoff coefficients of less than 9% conversion of mean annual precipitation (MAP) to mean annual runoff (MAR) known to be prevalent across large parts of the region (FAO, 2003). With predictions of water scarcity conditions, caused by rapid population growth, expanding urbanisation, increased economic development and climate change, (Rosegrant and Perez, 1997), water looks set to become a limiting resource in Southern Africa. The dynamics of demand and supply will have a large impact on the future socio-economic development of the region (Basson et al., 1997).
- Full Text:
- Authors: Mokoena, M P , Kapangaziwiri, E , Kahinda, J M , Hughes, Denis A
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438268 , vital:73447 , ISBN 978-1-4312-0408-3 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/TT%20555-13.pdf
- Description: The complexity of current approaches to water resource management poses many challenges. Water managers need to solve a range of interrelated water dilemmas, such as balancing water quantity and quality, flooding, drought, maintaining biodi-versity and ecological functions and the supply of water services to people. It is a sad fact in southern Africa that water availability is highly variable both spatially and temporally with low runoff coefficients of less than 9% conversion of mean annual precipitation (MAP) to mean annual runoff (MAR) known to be prevalent across large parts of the region (FAO, 2003). With predictions of water scarcity conditions, caused by rapid population growth, expanding urbanisation, increased economic development and climate change, (Rosegrant and Perez, 1997), water looks set to become a limiting resource in Southern Africa. The dynamics of demand and supply will have a large impact on the future socio-economic development of the region (Basson et al., 1997).
- Full Text:
Sediment as a physical water quality stressor on macro-invertebrates a contribution to the development of a water quality guideline for suspended solids
- Gordon, Andrew K, Niedballa, J, Palmer, Carolyn G
- Authors: Gordon, Andrew K , Niedballa, J , Palmer, Carolyn G
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438018 , vital:73429 , ISBN 978-1-4312-0456-4 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/2040-1-13.pdf
- Description: The aims of the project (and the chapter in which they are addressed) are presented below: 1. Establish the most appropriate sediment test material for exposure trials–Chapter 2 2. Test the effects of suspended particulates on selected macroinvertebrates at different levels of biolog-ical organization–Chapter 3 3. Generate an exposure-response rela-tionship framework from data generated in Aim 2 and relevant data in the literature–Chapter 4 4. Attempt to relate exposure-response data developed in the laboratory to natural conditions in the field–Chapter 5.
- Full Text:
- Authors: Gordon, Andrew K , Niedballa, J , Palmer, Carolyn G
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438018 , vital:73429 , ISBN 978-1-4312-0456-4 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/2040-1-13.pdf
- Description: The aims of the project (and the chapter in which they are addressed) are presented below: 1. Establish the most appropriate sediment test material for exposure trials–Chapter 2 2. Test the effects of suspended particulates on selected macroinvertebrates at different levels of biolog-ical organization–Chapter 3 3. Generate an exposure-response rela-tionship framework from data generated in Aim 2 and relevant data in the literature–Chapter 4 4. Attempt to relate exposure-response data developed in the laboratory to natural conditions in the field–Chapter 5.
- Full Text:
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